Montana Quality Foods and Processing is voluntarily recalling approximately 270 pounds of fresh ground beef that may be contaminated with E. coli O157:H7, the USDA's Food Safety and Inspection Service (FSIS) has announced. The products subject to recall are packaged in boxes of various weight and sizes. Each box is labeled "GENERAL CUSTER BRAND MEATS. ESTABLISHED 1946" and contains case codes of "23-1," "23-2," "23-3," or "23-4". The establishment code "EST. 7679" is located inside the USDA seal of inspection. Each box contains 10 pound bags, which bear the label "Ground Beef," and the company name and "EST. 7679".